Attachment for current-collector wheels.



L. R. HEGKER.

ATTAGHMENT FOR CURRENT GOLLEGTOR WHEELS.

APPLICATION FILE]? JULY 13,1907.

Patented Apr. 20, 1909.

erg gm ITD STATES PATENT OIFI IUE.

LEADDISON ROSS HEOKER, OF PHILADELPHIA, PENNSYLVANIA, ASSICTNOR 'lO SAFETY ELEG- TRIG RAILWAY CONSTRUCTION COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A GOR- PORATION OF THE DISTRICT OF COLUMBIA.

ATTACHMENT FOR CUBRENT-COLLEOTOR WHEELS.

No. 919,009. Specification of Letters Patent. Patented April 20, 1909. Application filed July 13, 1807. Serial No. 383,702.

To all whom it may concern: in an application filed by me jointly with Be it known that I, LEADDISON Ross Andrew H. Angle on the 13th day ofJuly, lI'ECKER, a citizen of the United States, and 1907, Serial Number 383,701. to

resident of Philadelphia, in the county of A brief description will now be given of the Philadelphia and State of Pennsylvania, application of the attachment to such a colhave invented ,a certain new and useful Atlector wheel. 1 is a forked frame having tachment for Current-Collector Wheels, of journaled therein a collector wheel 2, adapted which the following is a specification. to contact with a charged rail 3 of a conduit so The principal object of the present inven- 4. 5 are tire plates secured to and insulated tion is to provide an attachment for current from the collector wheel 2 and are adapted to collector wheels, whereby electric currents travel along the top of the conduit 4;. The that have performed their work may be reinsulation plugd is adapted to be fitted to the turned to the power house by means of a frame 1 in such manner that the transmitting c5 rail, third rail or conduit. brush will contact with and press against the A further object is to provide a simple, side of one of the tire plates as shown. The efficient and comparatively inexpensive atreturn wire j may then be connected to the tachment for this purpose. end 0 of the tube a, and the cap f screwed Other objects will hereinafter appear. down upon saidreturn wire to effect, as it 7o To these and other ends hereinafter set were, a binding post. By this arrangement, forth the invention stated in general terms it is obvious that current passes from the comprises the improvements to be presently charged rail 3 of the conduit, through the described and finally claimed. wheel 2, shaft 6, spring contact 7, and frame The nature, characteristic features and 1, to the operating mechanism, not shown, 7 scope of my invention will be more full r and after doing its required work, is returned understood from the following description by way of conductor j, tube a, brush i, tire taken in connection with the accompanying plate 5, conduit l, to the power house. drawings forming part hereof, and in which It will be borne in mind that while refer- Figure 1 is a sectional view of the attachence has been made herein to returning our- 80 ment embodying the invention. Fig. 2 is a rent to the power house by a concuit, I do similar view of a collector wheel illustrating not wish to limit myself to such, as I have in the attachment embodying the invention in mind returning current to any desired point application thereto, and Fig. 3 is a side eleby way of rails, third rails, or other manner vational view of the same. as may be most convenient. as

In the drawings a is a tube flanged at one Having thus described the nature and obend as at Z) and screw-threaded at its oppojects of my invention, what I claim as new site end 0. and desire to secure by Letters Patent, is

d is a plug of insulation shown as being 1. A device of the class described, comscrew-threaded and incasing the tube a, and prising a plug of insulating material, a tube 90 abutting against the flange 7) thereof and is flanged at one end and screw-threaded at its held in place by means of a lock nut e engagopposite end carried by the plug, a lock nut ing the threaded end of the tube a. upon the tube for forcing the flanged part of Having screw threaded relation with the the tube against the plug, a screw-threaded end of the tube a is a capf tapped for the reand tapped cap for the end of the tube, an 15 ception of an adjusting screw 9, penetrating adjusting screw carried by the cap, a transthe outer end of the tube a. i is a transmitmitting brush within the tube, and a tension ting brush, preferably of carbon, movable spring interposed between the said brush and within the tube a and having interposed adjusting screw. between it and the adjusting screw 9 a ten- 2. A device of the class described com- 100 sion spring h. prising a screw-threaded plug of insulating This device comprises a complete attachmaterial, a flanged and screw-threaded tube ment and is especially adapted for applicacarried thereby, means carried by the upper tion to collector wheels, shown and described end of said tube for forcing the flanged part of the tube against said plug, a cap engaging I signed my name this 20th day of June, 1907,

said screw-threaded tube, adjusting means in the presence of the subseribingwitnesses.

carried by the cap and penetrating the said T tube, a transmitting brush within the tube LEADDISO) ROSS HECKER' and a cushion between said adjusting means Witnesses:

WM. J. JACKSON,

and said brush.

In testimony whereof I have hereunto UTLEY E. CRANE. 

